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CMX994 Datasheet, PDF (51/61 Pages) CML Microcircuits – Local Oscillator
Direct Conversion Receivers
CMX994/CMX994A/CMX994E
9.2.1
Operating Characteristics
For the following conditions unless otherwise specified:
AVDD = DVDD = VDDIO = 3.0V to 3.6V; VSS = AVSS = DVSS, TAMB = +25°C; registers in default condition except
where otherwise specified or as necessary to enable the relevant sections of the device for half duplex
operation.
DC parameters
DC Parameters
Total Current Consumption
Powersave Mode
VBIAS Only
Operating Currents
Rx Only
Rx Only, Low Power Mode
Rx Only, Low Power Mode and Phase
Correction off
Rx Only, Low Power Mode and Phase
Correction off, I or Q channel disabled
Rx Only, Enhanced Intermodulation Mode
Tx Only
Stage currents
LNA Only
LNA in 50 Output Mode
I/Q Demodulator
Baseband I/Q
VCO and Buffer
LO Input
PLL
Current from VDDIO
Notes
Min.
1, 2
–
4
–
5
–
5a
–
5c
5d
5e
5
–
5
–
5b
–
5
–
5
–
5
–
5
–
5
–
3
–
Typ.
Max. Units
25
–
µA
1.7
3.5
mA
66
80
mA
56
–
mA
42
mA
33
mA
74
90
mA
22
30
mA
9
15
mA
11
–
mA
41
53
mA
13
15
mA
10
13
mA
5
7
mA
5.5
–
mA
–
600
µA
Logic “1” Input Level
Logic ‘0’ Input Level
70%
–
–
VDDIO
–
–
30%
VDDIO
Output Logic ‘1’ Level (lOH = 0.6 mA)
Output Logic ‘0’ Level (lOL = -1.0 mA)
Power-up Time
Internal Bias Supplies
All Blocks Except Internal Bias
80%
–
–
VDDIO
–
–
+0.4
V
6, 7
–
6
–
–
0.5
ms
–
10
µs
 2015 CML Microsystems Plc
Page 51 of 70
D/994_A_E/1